When it comes to give away not just a toy / consumer, but also to give a little "Flight Physics" with the way - for example, because you want to arouse or strengthen the technical interest - then this little Wurfgleiter is splendidly suited. Felix is a few centimeters higher than the "Fox" of multiplex and offers the advantage of being with him (not so at the Fox by Multiplex) the elevator (or the tail fin) trim. Because when Felix, the small or larger pilot or the pilot pull the elevator and push it to a point situated directly above it in a slightly different angle again. While the model in the basic setting for a (more or less straight) drop merges into a corresponding gliding, Felix takes in the other Trimmungsposition a steep climb, the one nice big looping results ("rollover" backwards) with enough momentum and proper discharge , In this way you get to one of the most important influences on an airplane know: namely, the effect of elevator deflection on the glide slope. As soon as you look with the weight distribution - that is the focus - busy, you can by a little experimenting to get to know the relationship between gravity and elevator travel. Have Fun! Buy recommendation! Five Stars.